title = 'Lab 1 - Task 5.1'
e = 2.1e6*9.80665/1e-4
nu = 0.3
yi = 2000*9.80665/1e-4
D = 10*1e-2
dcoef = 1.3
D_inf = D
P = 8000*9.80665
eltype1 = 182
eltype2 = 183
sigma = 4*P/3.14159/(D)**2
sigma_nom = 4*P/3.14159/(D/dcoef)**2